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APPROX
2009
Springer
126views Algorithms» more  APPROX 2009»
15 years 4 months ago
Improved Inapproximability Results for Maximum k-Colorable Subgraph
We study the maximization version of the fundamental graph coloring problem. Here the goal is to color the vertices of a k-colorable graph with k colors so that a maximum fraction ...
Venkatesan Guruswami, Ali Kemal Sinop
WAW
2004
Springer
150views Algorithms» more  WAW 2004»
15 years 2 months ago
Do Your Worst to Make the Best: Paradoxical Effects in PageRank Incremental Computations
d Abstract) Paolo Boldi† Massimo Santini‡ Sebastiano Vigna∗ Deciding which kind of visit accumulates high-quality pages more quickly is one of the most often debated issue i...
Paolo Boldi, Massimo Santini, Sebastiano Vigna
NIPS
2007
14 years 11 months ago
An Analysis of Convex Relaxations for MAP Estimation
The problem of obtaining the maximum a posteriori estimate of a general discrete random field (i.e. a random field defined using a finite and discrete set of labels) is known ...
Pawan Mudigonda, Vladimir Kolmogorov, Philip H. S....
CORR
2008
Springer
98views Education» more  CORR 2008»
14 years 9 months ago
An Information-Theoretical View of Network-Aware Malware Attacks
This work investigates three aspects: (a) a network vulnerability as the non-uniform vulnerable-host distribution, (b) threats, i.e., intelligent malwares that exploit such a vulne...
Zesheng Chen, Chuanyi Ji
GECCO
2005
Springer
125views Optimization» more  GECCO 2005»
15 years 3 months ago
Schema disruption in tree-structured chromosomes
We study if and when the inequality dp(H) ≤ rel∆(H) holds for schemas H in chromosomes that are structured as trees. The disruption probability dp(H) is the probability that a...
William A. Greene